.todo {
  color: greenyellow;
}
.learning {
  color: gold;
}
.finish {
  color: deeppink;
}
.header-button {
  margin-top: 50px;
  margin-bottom: 20px;
}
.main {
  margin-left: 50px;
  margin-right: 50px;
}
.button-bar {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
}
.button-bar button {
  margin-left: 10px;
  margin-top: 10px;
}
.course-list {
  padding-left: 5px;
  background-color: #101010;
  max-height: 200px;
  overflow: auto;
}
